3 # Architecture commands for GDB, the GNU debugger.
4 # Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
6 # This file is part of GDB.
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 # Make certain that the script is running in an internationalized
25 LC_ALL
=c
; export LC_ALL
33 echo "${file} missing? cp new-${file} ${file}" 1>&2
34 elif diff -u ${file} new-
${file}
36 echo "${file} unchanged" 1>&2
38 echo "${file} has changed? cp new-${file} ${file}" 1>&2
43 # Format of the input table
44 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
52 if test "${line}" = ""
55 elif test "${line}" = "#" -a "${comment}" = ""
58 elif expr "${line}" : "#" > /dev
/null
64 # The semantics of IFS varies between different SH's. Some
65 # treat ``::' as three fields while some treat it as just too.
66 # Work around this by eliminating ``::'' ....
67 line
="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
69 OFS
="${IFS}" ; IFS
="[:]"
70 eval read ${read} <<EOF
75 # .... and then going back through each field and strip out those
76 # that ended up with just that space character.
79 if eval test \"\
${${r}}\" = \"\
\"
86 1 ) gt_level
=">= GDB_MULTI_ARCH_PARTIAL" ;;
87 2 ) gt_level
="> GDB_MULTI_ARCH_PARTIAL" ;;
89 * ) error
"Error: bad level for ${function}" 1>&2 ; kill $$
; exit 1 ;;
93 m
) staticdefault
="${predefault}" ;;
94 M
) staticdefault
="0" ;;
95 * ) test "${staticdefault}" || staticdefault
=0 ;;
97 # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non-
98 # multi-arch defaults.
99 # test "${predefault}" || predefault=0
101 # come up with a format, use a few guesses for variables
102 case ":${class}:${fmt}:${print}:" in
104 if [ "${returntype}" = int
]
108 elif [ "${returntype}" = long
]
115 test "${fmt}" ||
fmt="%ld"
116 test "${print}" || print
="(long) ${macro}"
118 case "${invalid_p}" in
121 if [ -n "${predefault}" ]
123 #invalid_p="gdbarch->${function} == ${predefault}"
124 valid_p
="gdbarch->${function} != ${predefault}"
126 #invalid_p="gdbarch->${function} == 0"
127 valid_p
="gdbarch->${function} != 0"
130 * ) valid_p
="!(${invalid_p})"
133 # PREDEFAULT is a valid fallback definition of MEMBER when
134 # multi-arch is not enabled. This ensures that the
135 # default value, when multi-arch is the same as the
136 # default value when not multi-arch. POSTDEFAULT is
137 # always a valid definition of MEMBER as this again
138 # ensures consistency.
140 if [ -n "${postdefault}" ]
142 fallbackdefault
="${postdefault}"
143 elif [ -n "${predefault}" ]
145 fallbackdefault
="${predefault}"
150 #NOT YET: See gdbarch.log for basic verification of
165 fallback_default_p
()
167 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
168 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
171 class_is_variable_p
()
179 class_is_function_p
()
182 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
187 class_is_multiarch_p
()
195 class_is_predicate_p
()
198 *F
* |
*V
* |
*M
* ) true
;;
212 # dump out/verify the doco
222 # F -> function + predicate
223 # hiding a function + predicate to test function validity
226 # V -> variable + predicate
227 # hiding a variable + predicate to test variables validity
229 # hiding something from the ``struct info'' object
230 # m -> multi-arch function
231 # hiding a multi-arch function (parameterised with the architecture)
232 # M -> multi-arch function + predicate
233 # hiding a multi-arch function + predicate to test function validity
237 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
238 # LEVEL is a predicate on checking that a given method is
239 # initialized (using INVALID_P).
243 # The name of the MACRO that this method is to be accessed by.
247 # For functions, the return type; for variables, the data type
251 # For functions, the member function name; for variables, the
252 # variable name. Member function names are always prefixed with
253 # ``gdbarch_'' for name-space purity.
257 # The formal argument list. It is assumed that the formal
258 # argument list includes the actual name of each list element.
259 # A function with no arguments shall have ``void'' as the
260 # formal argument list.
264 # The list of actual arguments. The arguments specified shall
265 # match the FORMAL list given above. Functions with out
266 # arguments leave this blank.
270 # Any GCC attributes that should be attached to the function
271 # declaration. At present this field is unused.
275 # To help with the GDB startup a static gdbarch object is
276 # created. STATICDEFAULT is the value to insert into that
277 # static gdbarch object. Since this a static object only
278 # simple expressions can be used.
280 # If STATICDEFAULT is empty, zero is used.
284 # An initial value to assign to MEMBER of the freshly
285 # malloc()ed gdbarch object. After initialization, the
286 # freshly malloc()ed object is passed to the target
287 # architecture code for further updates.
289 # If PREDEFAULT is empty, zero is used.
291 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
292 # INVALID_P are specified, PREDEFAULT will be used as the
293 # default for the non- multi-arch target.
295 # A zero PREDEFAULT function will force the fallback to call
298 # Variable declarations can refer to ``gdbarch'' which will
299 # contain the current architecture. Care should be taken.
303 # A value to assign to MEMBER of the new gdbarch object should
304 # the target architecture code fail to change the PREDEFAULT
307 # If POSTDEFAULT is empty, no post update is performed.
309 # If both INVALID_P and POSTDEFAULT are non-empty then
310 # INVALID_P will be used to determine if MEMBER should be
311 # changed to POSTDEFAULT.
313 # If a non-empty POSTDEFAULT and a zero INVALID_P are
314 # specified, POSTDEFAULT will be used as the default for the
315 # non- multi-arch target (regardless of the value of
318 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
320 # Variable declarations can refer to ``gdbarch'' which will
321 # contain the current architecture. Care should be taken.
325 # A predicate equation that validates MEMBER. Non-zero is
326 # returned if the code creating the new architecture failed to
327 # initialize MEMBER or the initialized the member is invalid.
328 # If POSTDEFAULT is non-empty then MEMBER will be updated to
329 # that value. If POSTDEFAULT is empty then internal_error()
332 # If INVALID_P is empty, a check that MEMBER is no longer
333 # equal to PREDEFAULT is used.
335 # The expression ``0'' disables the INVALID_P check making
336 # PREDEFAULT a legitimate value.
338 # See also PREDEFAULT and POSTDEFAULT.
342 # printf style format string that can be used to print out the
343 # MEMBER. Sometimes "%s" is useful. For functions, this is
344 # ignored and the function address is printed.
346 # If FMT is empty, ``%ld'' is used.
350 # An optional equation that casts MEMBER to a value suitable
351 # for formatting by FMT.
353 # If PRINT is empty, ``(long)'' is used.
357 # An optional indicator for any predicte to wrap around the
360 # () -> Call a custom function to do the dump.
361 # exp -> Wrap print up in ``if (${print_p}) ...
362 # ``'' -> No predicate
364 # If PRINT_P is empty, ``1'' is always used.
371 echo "Bad field ${field}"
379 # See below (DOCO) for description of each field
381 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
383 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
384 # Number of bits in a char or unsigned char for the target machine.
385 # Just like CHAR_BIT in <limits.h> but describes the target machine.
386 # v::TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
388 # Number of bits in a short or unsigned short for the target machine.
389 v::TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
390 # Number of bits in an int or unsigned int for the target machine.
391 v::TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
392 # Number of bits in a long or unsigned long for the target machine.
393 v::TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
394 # Number of bits in a long long or unsigned long long for the target
396 v::TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
397 # Number of bits in a float for the target machine.
398 v::TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
399 # Number of bits in a double for the target machine.
400 v::TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
401 # Number of bits in a long double for the target machine.
402 v::TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
403 # For most targets, a pointer on the target and its representation as an
404 # address in GDB have the same size and "look the same". For such a
405 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
406 # / addr_bit will be set from it.
408 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
409 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
411 # ptr_bit is the size of a pointer on the target
412 v::TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
413 # addr_bit is the size of a target address as represented in gdb
414 v::TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
415 # Number of bits in a BFD_VMA for the target object file format.
416 v::TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
418 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
419 v::TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
421 f::TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
422 f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
423 f::TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
424 f::TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
425 f::TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0
426 # Function for getting target's idea of a frame pointer. FIXME: GDB's
427 # whole scheme for dealing with "frames" and "frame pointers" needs a
429 f::TARGET_VIRTUAL_FRAME_POINTER:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset::0:legacy_virtual_frame_pointer::0
431 M:::void:register_read:int regnum, char *buf:regnum, buf:
432 M:::void:register_write:int regnum, char *buf:regnum, buf:
434 v:2:NUM_REGS:int:num_regs::::0:-1
435 # This macro gives the number of pseudo-registers that live in the
436 # register namespace but do not get fetched or stored on the target.
437 # These pseudo-registers may be aliases for other registers,
438 # combinations of other registers, or they may be computed by GDB.
439 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
441 # GDB's standard (or well known) register numbers. These can map onto
442 # a real register or a pseudo (computed) register or not be defined at
444 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
445 v:2:FP_REGNUM:int:fp_regnum::::-1:-1::0
446 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
447 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
448 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
449 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
450 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
451 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
452 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
453 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
454 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
455 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
456 # Convert from an sdb register number to an internal gdb register number.
457 # This should be defined in tm.h, if REGISTER_NAMES is not set up
458 # to map one to one onto the sdb register numbers.
459 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
460 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
461 f:2:REGISTER_NAME:char *:register_name:int regnr:regnr:::legacy_register_name::0
462 v:2:REGISTER_SIZE:int:register_size::::0:-1
463 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
464 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0
465 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
466 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
467 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
468 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
469 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
470 f:2:DO_REGISTERS_INFO:void:do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs:::do_registers_info::0
471 f:2:PRINT_FLOAT_INFO:void:print_float_info:void::::default_print_float_info::0
472 # MAP a GDB RAW register number onto a simulator register number. See
473 # also include/...-sim.h.
474 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::default_register_sim_regno::0
475 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
476 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
477 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
478 # setjmp/longjmp support.
479 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc::0:0
481 # Non multi-arch DUMMY_FRAMES are a mess (multi-arch ones are not that
482 # much better but at least they are vaguely consistent). The headers
483 # and body contain convoluted #if/#else sequences for determine how
484 # things should be compiled. Instead of trying to mimic that
485 # behaviour here (and hence entrench it further) gdbarch simply
486 # reqires that these methods be set up from the word go. This also
487 # avoids any potential problems with moving beyond multi-arch partial.
488 v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
489 v:1:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
490 f:2:CALL_DUMMY_ADDRESS:CORE_ADDR:call_dummy_address:void:::0:0::gdbarch->call_dummy_location == AT_ENTRY_POINT && gdbarch->call_dummy_address == 0
491 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
492 v:2:CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:call_dummy_breakpoint_offset::::0:-1::gdbarch->call_dummy_breakpoint_offset_p && gdbarch->call_dummy_breakpoint_offset == -1:0x%08lx::CALL_DUMMY_BREAKPOINT_OFFSET_P
493 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
494 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
495 f:1:PC_IN_CALL_DUMMY:int:pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::0:0
496 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
497 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
498 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
499 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
500 v:2:CALL_DUMMY_STACK_ADJUST:int:call_dummy_stack_adjust::::0:::gdbarch->call_dummy_stack_adjust_p && gdbarch->call_dummy_stack_adjust == 0:0x%08lx::CALL_DUMMY_STACK_ADJUST_P
501 f:2:FIX_CALL_DUMMY:void:fix_call_dummy:char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs, struct value **args, struct type *type, int gcc_p:dummy, pc, fun, nargs, args, type, gcc_p:::0
502 f:2:INIT_FRAME_PC_FIRST:void:init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_noop::0
503 f:2:INIT_FRAME_PC:void:init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_default::0
505 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
506 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
507 f:2:COERCE_FLOAT_TO_DOUBLE:int:coerce_float_to_double:struct type *formal, struct type *actual:formal, actual:::default_coerce_float_to_double::0
508 # GET_SAVED_REGISTER is like DUMMY_FRAMES. It is at level one as the
509 # old code has strange #ifdef interaction. So far no one has found
510 # that default_get_saved_register() is the default they are after.
511 f:1:GET_SAVED_REGISTER:void:get_saved_register:char *raw_buffer, int *optimized, CORE_ADDR *addrp, struct frame_info *frame, int regnum, enum lval_type *lval:raw_buffer, optimized, addrp, frame, regnum, lval::generic_get_saved_register:0
513 f:2:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
514 f:2:REGISTER_CONVERT_TO_VIRTUAL:void:register_convert_to_virtual:int regnum, struct type *type, char *from, char *to:regnum, type, from, to:::0::0
515 f:2:REGISTER_CONVERT_TO_RAW:void:register_convert_to_raw:struct type *type, int regnum, char *from, char *to:type, regnum, from, to:::0::0
517 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum:regnum::0:legacy_convert_register_p::0
518 f:1:REGISTER_TO_VALUE:void:register_to_value:int regnum, struct type *type, char *from, char *to:regnum, type, from, to::0:legacy_register_to_value::0
519 f:1:VALUE_TO_REGISTER:void:value_to_register:struct type *type, int regnum, char *from, char *to:type, regnum, from, to::0:legacy_value_to_register::0
520 # This function is called when the value of a pseudo-register needs to
521 # be updated. Typically it will be defined on a per-architecture
523 F:2:FETCH_PSEUDO_REGISTER:void:fetch_pseudo_register:int regnum:regnum:
524 # This function is called when the value of a pseudo-register needs to
525 # be set or stored. Typically it will be defined on a
526 # per-architecture basis.
527 F:2:STORE_PSEUDO_REGISTER:void:store_pseudo_register:int regnum:regnum:
529 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
530 f:2:ADDRESS_TO_POINTER:void:address_to_pointer:struct type *type, void *buf, CORE_ADDR addr:type, buf, addr:::unsigned_address_to_pointer::0
531 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
533 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
534 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0
535 f:2:PUSH_ARGUMENTS:CORE_ADDR:push_arguments:int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:nargs, args, sp, struct_return, struct_addr:::default_push_arguments::0
536 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
537 F:2:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
538 f:2:POP_FRAME:void:pop_frame:void:-:::0
540 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
541 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0
542 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf:::0
543 f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type:::generic_use_struct_convention::0
545 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
546 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
548 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
549 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
550 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
551 f:2:BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
552 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
553 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
554 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
555 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
556 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
558 f:2:REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:gdb_addr, gdb_len, rem_addr, rem_len:::generic_remote_translate_xfer_address::0
560 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
561 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
562 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
563 # Define a default FRAME_CHAIN_VALID, in the form that is suitable for
564 # most targets. If FRAME_CHAIN_VALID returns zero it means that the
565 # given frame is the outermost one and has no caller.
567 # XXXX - both default and alternate frame_chain_valid functions are
568 # deprecated. New code should use dummy frames and one of the generic
570 f:2:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe:::func_frame_chain_valid::0
571 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
572 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
573 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
574 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
575 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
577 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
578 v:2:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
579 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
580 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
581 v:2:PARM_BOUNDARY:int:parm_boundary
583 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
584 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
585 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)
586 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
587 # On some machines there are bits in addresses which are not really
588 # part of the address, but are used by the kernel, the hardware, etc.
589 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
590 # we get a "real" address such as one would find in a symbol table.
591 # This is used only for addresses of instructions, and even then I'm
592 # not sure it's used in all contexts. It exists to deal with there
593 # being a few stray bits in the PC which would mislead us, not as some
594 # sort of generic thing to handle alignment or segmentation (it's
595 # possible it should be in TARGET_READ_PC instead).
596 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
597 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
599 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
600 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
601 # the target needs software single step. An ISA method to implement it.
603 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
604 # using the breakpoint system instead of blatting memory directly (as with rs6000).
606 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
607 # single step. If not, then implement single step using breakpoints.
608 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
609 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
610 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
611 # For SVR4 shared libraries, each call goes through a small piece of
612 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
613 # to nonzero if we are current stopped in one of these.
614 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
615 # Sigtramp is a routine that the kernel calls (which then calls the
616 # signal handler). On most machines it is a library routine that is
617 # linked into the executable.
619 # This macro, given a program counter value and the name of the
620 # function in which that PC resides (which can be null if the name is
621 # not known), returns nonzero if the PC and name show that we are in
624 # On most machines just see if the name is sigtramp (and if we have
625 # no name, assume we are not in sigtramp).
627 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
628 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
629 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
630 # own local NAME lookup.
632 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
633 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
635 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
636 # A target might have problems with watchpoints as soon as the stack
637 # frame of the current function has been destroyed. This mostly happens
638 # as the first action in a funtion's epilogue. in_function_epilogue_p()
639 # is defined to return a non-zero value if either the given addr is one
640 # instruction after the stack destroying instruction up to the trailing
641 # return instruction or if we can figure out that the stack frame has
642 # already been invalidated regardless of the value of addr. Targets
643 # which don't suffer from that problem could just let this functionality
645 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
646 # Given a vector of command-line arguments, return a newly allocated
647 # string which, when passed to the create_inferior function, will be
648 # parsed (on Unix systems, by the shell) to yield the same vector.
649 # This function should call error() if the argument vector is not
650 # representable for this target or if this target does not support
651 # command-line arguments.
652 # ARGC is the number of elements in the vector.
653 # ARGV is an array of strings, one per argument.
654 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
655 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
656 f:2:ELF_MAKE_MSYMBOL_SPECIAL:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym:::default_elf_make_msymbol_special::0
657 f:2:COFF_MAKE_MSYMBOL_SPECIAL:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym:::default_coff_make_msymbol_special::0
664 exec > new-gdbarch.log
665 function_list |
while do_read
668 ${class} ${macro}(${actual})
669 ${returntype} ${function} ($formal)${attrib}
673 eval echo \"\ \ \ \
${r}=\
${${r}}\"
675 # #fallbackdefault=${fallbackdefault}
676 # #valid_p=${valid_p}
678 if class_is_predicate_p
&& fallback_default_p
680 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
684 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
686 echo "Error: postdefault is useless when invalid_p=0" 1>&2
690 if class_is_multiarch_p
692 if class_is_predicate_p
; then :
693 elif test "x${predefault}" = "x"
695 echo "Error: pure multi-arch function must have a predefault" 1>&2
704 compare_new gdbarch.log
710 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
712 /* Dynamic architecture support for GDB, the GNU debugger.
713 Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
715 This file is part of GDB.
717 This program is free software; you can redistribute it and/or modify
718 it under the terms of the GNU General Public License as published by
719 the Free Software Foundation; either version 2 of the License, or
720 (at your option) any later version.
722 This program is distributed in the hope that it will be useful,
723 but WITHOUT ANY WARRANTY; without even the implied warranty of
724 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
725 GNU General Public License for more details.
727 You should have received a copy of the GNU General Public License
728 along with this program; if not, write to the Free Software
729 Foundation, Inc., 59 Temple Place - Suite 330,
730 Boston, MA 02111-1307, USA. */
732 /* This file was created with the aid of \`\`gdbarch.sh''.
734 The Bourne shell script \`\`gdbarch.sh'' creates the files
735 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
736 against the existing \`\`gdbarch.[hc]''. Any differences found
739 If editing this file, please also run gdbarch.sh and merge any
740 changes into that script. Conversely, when making sweeping changes
741 to this file, modifying gdbarch.sh and using its output may prove
757 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
759 /* Pull in function declarations refered to, indirectly, via macros. */
760 #include "value.h" /* For default_coerce_float_to_double which is referenced by a macro. */
761 #include "inferior.h" /* For unsigned_address_to_pointer(). */
767 struct minimal_symbol;
769 extern struct gdbarch *current_gdbarch;
772 /* If any of the following are defined, the target wasn't correctly
776 #if defined (EXTRA_FRAME_INFO)
777 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
782 #if defined (FRAME_FIND_SAVED_REGS)
783 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
787 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
788 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
795 printf "/* The following are pre-initialized by GDBARCH. */\n"
796 function_list |
while do_read
801 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
802 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
803 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
804 printf "#error \"Non multi-arch definition of ${macro}\"\n"
806 printf "#if GDB_MULTI_ARCH\n"
807 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
808 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
817 printf "/* The following are initialized by the target dependent code. */\n"
818 function_list |
while do_read
820 if [ -n "${comment}" ]
822 echo "${comment}" |
sed \
827 if class_is_multiarch_p
829 if class_is_predicate_p
832 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
835 if class_is_predicate_p
838 printf "#if defined (${macro})\n"
839 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
840 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
841 printf "#if !defined (${macro}_P)\n"
842 printf "#define ${macro}_P() (1)\n"
846 printf "/* Default predicate for non- multi-arch targets. */\n"
847 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
848 printf "#define ${macro}_P() (0)\n"
851 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
852 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
853 printf "#error \"Non multi-arch definition of ${macro}\"\n"
855 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
856 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
860 if class_is_variable_p
862 if fallback_default_p || class_is_predicate_p
865 printf "/* Default (value) for non- multi-arch platforms. */\n"
866 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
867 echo "#define ${macro} (${fallbackdefault})" \
868 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
872 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
873 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
874 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
875 printf "#error \"Non multi-arch definition of ${macro}\"\n"
877 printf "#if GDB_MULTI_ARCH\n"
878 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
879 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
883 if class_is_function_p
885 if class_is_multiarch_p
; then :
886 elif fallback_default_p || class_is_predicate_p
889 printf "/* Default (function) for non- multi-arch platforms. */\n"
890 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
891 if [ "x${fallbackdefault}" = "x0" ]
893 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
895 # FIXME: Should be passing current_gdbarch through!
896 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
897 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
902 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
904 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
905 elif class_is_multiarch_p
907 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
909 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
911 if [ "x${formal}" = "xvoid" ]
913 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
915 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
917 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
918 if class_is_multiarch_p
; then :
920 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
921 printf "#error \"Non multi-arch definition of ${macro}\"\n"
923 printf "#if GDB_MULTI_ARCH\n"
924 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
925 if [ "x${actual}" = "x" ]
927 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
928 elif [ "x${actual}" = "x-" ]
930 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
932 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
943 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
946 /* Mechanism for co-ordinating the selection of a specific
949 GDB targets (*-tdep.c) can register an interest in a specific
950 architecture. Other GDB components can register a need to maintain
951 per-architecture data.
953 The mechanisms below ensures that there is only a loose connection
954 between the set-architecture command and the various GDB
955 components. Each component can independently register their need
956 to maintain architecture specific data with gdbarch.
960 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
963 The more traditional mega-struct containing architecture specific
964 data for all the various GDB components was also considered. Since
965 GDB is built from a variable number of (fairly independent)
966 components it was determined that the global aproach was not
970 /* Register a new architectural family with GDB.
972 Register support for the specified ARCHITECTURE with GDB. When
973 gdbarch determines that the specified architecture has been
974 selected, the corresponding INIT function is called.
978 The INIT function takes two parameters: INFO which contains the
979 information available to gdbarch about the (possibly new)
980 architecture; ARCHES which is a list of the previously created
981 \`\`struct gdbarch'' for this architecture.
983 The INFO parameter is, as far as possible, be pre-initialized with
984 information obtained from INFO.ABFD or the previously selected
987 The ARCHES parameter is a linked list (sorted most recently used)
988 of all the previously created architures for this architecture
989 family. The (possibly NULL) ARCHES->gdbarch can used to access
990 values from the previously selected architecture for this
991 architecture family. The global \`\`current_gdbarch'' shall not be
994 The INIT function shall return any of: NULL - indicating that it
995 doesn't recognize the selected architecture; an existing \`\`struct
996 gdbarch'' from the ARCHES list - indicating that the new
997 architecture is just a synonym for an earlier architecture (see
998 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
999 - that describes the selected architecture (see gdbarch_alloc()).
1001 The DUMP_TDEP function shall print out all target specific values.
1002 Care should be taken to ensure that the function works in both the
1003 multi-arch and non- multi-arch cases. */
1007 struct gdbarch *gdbarch;
1008 struct gdbarch_list *next;
1013 /* Use default: NULL (ZERO). */
1014 const struct bfd_arch_info *bfd_arch_info;
1016 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1019 /* Use default: NULL (ZERO). */
1022 /* Use default: NULL (ZERO). */
1023 struct gdbarch_tdep_info *tdep_info;
1026 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1027 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1029 /* DEPRECATED - use gdbarch_register() */
1030 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1032 extern void gdbarch_register (enum bfd_architecture architecture,
1033 gdbarch_init_ftype *,
1034 gdbarch_dump_tdep_ftype *);
1037 /* Return a freshly allocated, NULL terminated, array of the valid
1038 architecture names. Since architectures are registered during the
1039 _initialize phase this function only returns useful information
1040 once initialization has been completed. */
1042 extern const char **gdbarch_printable_names (void);
1045 /* Helper function. Search the list of ARCHES for a GDBARCH that
1046 matches the information provided by INFO. */
1048 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1051 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1052 basic initialization using values obtained from the INFO andTDEP
1053 parameters. set_gdbarch_*() functions are called to complete the
1054 initialization of the object. */
1056 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1059 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1060 It is assumed that the caller freeds the \`\`struct
1063 extern void gdbarch_free (struct gdbarch *);
1066 /* Helper function. Force an update of the current architecture.
1068 The actual architecture selected is determined by INFO, \`\`(gdb) set
1069 architecture'' et.al., the existing architecture and BFD's default
1070 architecture. INFO should be initialized to zero and then selected
1071 fields should be updated.
1073 Returns non-zero if the update succeeds */
1075 extern int gdbarch_update_p (struct gdbarch_info info);
1079 /* Register per-architecture data-pointer.
1081 Reserve space for a per-architecture data-pointer. An identifier
1082 for the reserved data-pointer is returned. That identifer should
1083 be saved in a local static variable.
1085 The per-architecture data-pointer can be initialized in one of two
1086 ways: The value can be set explicitly using a call to
1087 set_gdbarch_data(); the value can be set implicitly using the value
1088 returned by a non-NULL INIT() callback. INIT(), when non-NULL is
1089 called after the basic architecture vector has been created.
1091 When a previously created architecture is re-selected, the
1092 per-architecture data-pointer for that previous architecture is
1093 restored. INIT() is not called.
1095 During initialization, multiple assignments of the data-pointer are
1096 allowed, non-NULL values are deleted by calling FREE(). If the
1097 architecture is deleted using gdbarch_free() all non-NULL data
1098 pointers are also deleted using FREE().
1100 Multiple registrarants for any architecture are allowed (and
1101 strongly encouraged). */
1103 struct gdbarch_data;
1105 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1106 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1108 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1109 gdbarch_data_free_ftype *free);
1110 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1111 struct gdbarch_data *data,
1114 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1117 /* Register per-architecture memory region.
1119 Provide a memory-region swap mechanism. Per-architecture memory
1120 region are created. These memory regions are swapped whenever the
1121 architecture is changed. For a new architecture, the memory region
1122 is initialized with zero (0) and the INIT function is called.
1124 Memory regions are swapped / initialized in the order that they are
1125 registered. NULL DATA and/or INIT values can be specified.
1127 New code should use register_gdbarch_data(). */
1129 typedef void (gdbarch_swap_ftype) (void);
1130 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1131 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1135 /* The target-system-dependent byte order is dynamic */
1137 extern int target_byte_order;
1138 #ifndef TARGET_BYTE_ORDER
1139 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1142 extern int target_byte_order_auto;
1143 #ifndef TARGET_BYTE_ORDER_AUTO
1144 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1149 /* The target-system-dependent BFD architecture is dynamic */
1151 extern int target_architecture_auto;
1152 #ifndef TARGET_ARCHITECTURE_AUTO
1153 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1156 extern const struct bfd_arch_info *target_architecture;
1157 #ifndef TARGET_ARCHITECTURE
1158 #define TARGET_ARCHITECTURE (target_architecture + 0)
1162 /* The target-system-dependent disassembler is semi-dynamic */
1164 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1165 unsigned int len, disassemble_info *info);
1167 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1168 disassemble_info *info);
1170 extern void dis_asm_print_address (bfd_vma addr,
1171 disassemble_info *info);
1173 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1174 extern disassemble_info tm_print_insn_info;
1175 #ifndef TARGET_PRINT_INSN_INFO
1176 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1181 /* Set the dynamic target-system-dependent parameters (architecture,
1182 byte-order, ...) using information found in the BFD */
1184 extern void set_gdbarch_from_file (bfd *);
1187 /* Initialize the current architecture to the "first" one we find on
1190 extern void initialize_current_architecture (void);
1192 /* For non-multiarched targets, do any initialization of the default
1193 gdbarch object necessary after the _initialize_MODULE functions
1195 extern void initialize_non_multiarch ();
1197 /* gdbarch trace variable */
1198 extern int gdbarch_debug;
1200 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1205 #../move-if-change new-gdbarch.h gdbarch.h
1206 compare_new gdbarch.h
1213 exec > new-gdbarch.c
1218 #include "arch-utils.h"
1222 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1224 /* Just include everything in sight so that the every old definition
1225 of macro is visible. */
1226 #include "gdb_string.h"
1230 #include "inferior.h"
1231 #include "breakpoint.h"
1232 #include "gdb_wait.h"
1233 #include "gdbcore.h"
1236 #include "gdbthread.h"
1237 #include "annotate.h"
1238 #include "symfile.h" /* for overlay functions */
1239 #include "value.h" /* For old tm.h/nm.h macros. */
1243 #include "floatformat.h"
1245 #include "gdb_assert.h"
1246 #include "gdb-events.h"
1248 /* Static function declarations */
1250 static void verify_gdbarch (struct gdbarch *gdbarch);
1251 static void alloc_gdbarch_data (struct gdbarch *);
1252 static void init_gdbarch_data (struct gdbarch *);
1253 static void free_gdbarch_data (struct gdbarch *);
1254 static void init_gdbarch_swap (struct gdbarch *);
1255 static void clear_gdbarch_swap (struct gdbarch *);
1256 static void swapout_gdbarch_swap (struct gdbarch *);
1257 static void swapin_gdbarch_swap (struct gdbarch *);
1259 /* Non-zero if we want to trace architecture code. */
1261 #ifndef GDBARCH_DEBUG
1262 #define GDBARCH_DEBUG 0
1264 int gdbarch_debug = GDBARCH_DEBUG;
1268 # gdbarch open the gdbarch object
1270 printf "/* Maintain the struct gdbarch object */\n"
1272 printf "struct gdbarch\n"
1274 printf " /* basic architectural information */\n"
1275 function_list |
while do_read
1279 printf " ${returntype} ${function};\n"
1283 printf " /* target specific vector. */\n"
1284 printf " struct gdbarch_tdep *tdep;\n"
1285 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1287 printf " /* per-architecture data-pointers */\n"
1288 printf " unsigned nr_data;\n"
1289 printf " void **data;\n"
1291 printf " /* per-architecture swap-regions */\n"
1292 printf " struct gdbarch_swap *swap;\n"
1295 /* Multi-arch values.
1297 When extending this structure you must:
1299 Add the field below.
1301 Declare set/get functions and define the corresponding
1304 gdbarch_alloc(): If zero/NULL is not a suitable default,
1305 initialize the new field.
1307 verify_gdbarch(): Confirm that the target updated the field
1310 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1313 \`\`startup_gdbarch()'': Append an initial value to the static
1314 variable (base values on the host's c-type system).
1316 get_gdbarch(): Implement the set/get functions (probably using
1317 the macro's as shortcuts).
1322 function_list |
while do_read
1324 if class_is_variable_p
1326 printf " ${returntype} ${function};\n"
1327 elif class_is_function_p
1329 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1334 # A pre-initialized vector
1338 /* The default architecture uses host values (for want of a better
1342 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1344 printf "struct gdbarch startup_gdbarch =\n"
1346 printf " /* basic architecture information */\n"
1347 function_list |
while do_read
1351 printf " ${staticdefault},\n"
1355 /* target specific vector and its dump routine */
1357 /*per-architecture data-pointers and swap regions */
1359 /* Multi-arch values */
1361 function_list |
while do_read
1363 if class_is_function_p || class_is_variable_p
1365 printf " ${staticdefault},\n"
1369 /* startup_gdbarch() */
1372 struct gdbarch *current_gdbarch = &startup_gdbarch;
1374 /* Do any initialization needed for a non-multiarch configuration
1375 after the _initialize_MODULE functions have been run. */
1377 initialize_non_multiarch ()
1379 alloc_gdbarch_data (&startup_gdbarch);
1380 /* Ensure that all swap areas are zeroed so that they again think
1381 they are starting from scratch. */
1382 clear_gdbarch_swap (&startup_gdbarch);
1383 init_gdbarch_swap (&startup_gdbarch);
1384 init_gdbarch_data (&startup_gdbarch);
1388 # Create a new gdbarch struct
1392 /* Create a new \`\`struct gdbarch'' based on information provided by
1393 \`\`struct gdbarch_info''. */
1398 gdbarch_alloc (const struct gdbarch_info *info,
1399 struct gdbarch_tdep *tdep)
1401 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1402 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1403 the current local architecture and not the previous global
1404 architecture. This ensures that the new architectures initial
1405 values are not influenced by the previous architecture. Once
1406 everything is parameterised with gdbarch, this will go away. */
1407 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1408 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1410 alloc_gdbarch_data (current_gdbarch);
1412 current_gdbarch->tdep = tdep;
1415 function_list |
while do_read
1419 printf " current_gdbarch->${function} = info->${function};\n"
1423 printf " /* Force the explicit initialization of these. */\n"
1424 function_list |
while do_read
1426 if class_is_function_p || class_is_variable_p
1428 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1430 printf " current_gdbarch->${function} = ${predefault};\n"
1435 /* gdbarch_alloc() */
1437 return current_gdbarch;
1441 # Free a gdbarch struct.
1445 /* Free a gdbarch struct. This should never happen in normal
1446 operation --- once you've created a gdbarch, you keep it around.
1447 However, if an architecture's init function encounters an error
1448 building the structure, it may need to clean up a partially
1449 constructed gdbarch. */
1452 gdbarch_free (struct gdbarch *arch)
1454 gdb_assert (arch != NULL);
1455 free_gdbarch_data (arch);
1460 # verify a new architecture
1463 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1467 verify_gdbarch (struct gdbarch *gdbarch)
1469 struct ui_file *log;
1470 struct cleanup *cleanups;
1473 /* Only perform sanity checks on a multi-arch target. */
1474 if (!GDB_MULTI_ARCH)
1476 log = mem_fileopen ();
1477 cleanups = make_cleanup_ui_file_delete (log);
1479 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1480 fprintf_unfiltered (log, "\n\tbyte-order");
1481 if (gdbarch->bfd_arch_info == NULL)
1482 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1483 /* Check those that need to be defined for the given multi-arch level. */
1485 function_list |
while do_read
1487 if class_is_function_p || class_is_variable_p
1489 if [ "x${invalid_p}" = "x0" ]
1491 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1492 elif class_is_predicate_p
1494 printf " /* Skip verify of ${function}, has predicate */\n"
1495 # FIXME: See do_read for potential simplification
1496 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1498 printf " if (${invalid_p})\n"
1499 printf " gdbarch->${function} = ${postdefault};\n"
1500 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1502 printf " if (gdbarch->${function} == ${predefault})\n"
1503 printf " gdbarch->${function} = ${postdefault};\n"
1504 elif [ -n "${postdefault}" ]
1506 printf " if (gdbarch->${function} == 0)\n"
1507 printf " gdbarch->${function} = ${postdefault};\n"
1508 elif [ -n "${invalid_p}" ]
1510 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1511 printf " && (${invalid_p}))\n"
1512 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1513 elif [ -n "${predefault}" ]
1515 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1516 printf " && (gdbarch->${function} == ${predefault}))\n"
1517 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1522 buf = ui_file_xstrdup (log, &dummy);
1523 make_cleanup (xfree, buf);
1524 if (strlen (buf) > 0)
1525 internal_error (__FILE__, __LINE__,
1526 "verify_gdbarch: the following are invalid ...%s",
1528 do_cleanups (cleanups);
1532 # dump the structure
1536 /* Print out the details of the current architecture. */
1538 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1539 just happens to match the global variable \`\`current_gdbarch''. That
1540 way macros refering to that variable get the local and not the global
1541 version - ulgh. Once everything is parameterised with gdbarch, this
1545 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1547 fprintf_unfiltered (file,
1548 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1551 function_list |
sort -t: +2 |
while do_read
1553 # multiarch functions don't have macros.
1554 if class_is_multiarch_p
1556 printf " if (GDB_MULTI_ARCH)\n"
1557 printf " fprintf_unfiltered (file,\n"
1558 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1559 printf " (long) current_gdbarch->${function});\n"
1562 # Print the macro definition.
1563 printf "#ifdef ${macro}\n"
1564 if [ "x${returntype}" = "xvoid" ]
1566 printf "#if GDB_MULTI_ARCH\n"
1567 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1569 if class_is_function_p
1571 printf " fprintf_unfiltered (file,\n"
1572 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1573 printf " \"${macro}(${actual})\",\n"
1574 printf " XSTRING (${macro} (${actual})));\n"
1576 printf " fprintf_unfiltered (file,\n"
1577 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1578 printf " XSTRING (${macro}));\n"
1580 # Print the architecture vector value
1581 if [ "x${returntype}" = "xvoid" ]
1585 if [ "x${print_p}" = "x()" ]
1587 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1588 elif [ "x${print_p}" = "x0" ]
1590 printf " /* skip print of ${macro}, print_p == 0. */\n"
1591 elif [ -n "${print_p}" ]
1593 printf " if (${print_p})\n"
1594 printf " fprintf_unfiltered (file,\n"
1595 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1596 printf " ${print});\n"
1597 elif class_is_function_p
1599 printf " if (GDB_MULTI_ARCH)\n"
1600 printf " fprintf_unfiltered (file,\n"
1601 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1602 printf " (long) current_gdbarch->${function}\n"
1603 printf " /*${macro} ()*/);\n"
1605 printf " fprintf_unfiltered (file,\n"
1606 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1607 printf " ${print});\n"
1612 if (current_gdbarch->dump_tdep != NULL)
1613 current_gdbarch->dump_tdep (current_gdbarch, file);
1621 struct gdbarch_tdep *
1622 gdbarch_tdep (struct gdbarch *gdbarch)
1624 if (gdbarch_debug >= 2)
1625 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1626 return gdbarch->tdep;
1630 function_list |
while do_read
1632 if class_is_predicate_p
1636 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1638 printf " gdb_assert (gdbarch != NULL);\n"
1639 if [ -n "${valid_p}" ]
1641 printf " return ${valid_p};\n"
1643 printf "#error \"gdbarch_${function}_p: not defined\"\n"
1647 if class_is_function_p
1650 printf "${returntype}\n"
1651 if [ "x${formal}" = "xvoid" ]
1653 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1655 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1658 printf " gdb_assert (gdbarch != NULL);\n"
1659 printf " if (gdbarch->${function} == 0)\n"
1660 printf " internal_error (__FILE__, __LINE__,\n"
1661 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1662 printf " if (gdbarch_debug >= 2)\n"
1663 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1664 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1666 if class_is_multiarch_p
1673 if class_is_multiarch_p
1675 params
="gdbarch, ${actual}"
1680 if [ "x${returntype}" = "xvoid" ]
1682 printf " gdbarch->${function} (${params});\n"
1684 printf " return gdbarch->${function} (${params});\n"
1689 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1690 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1692 printf " gdbarch->${function} = ${function};\n"
1694 elif class_is_variable_p
1697 printf "${returntype}\n"
1698 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1700 printf " gdb_assert (gdbarch != NULL);\n"
1701 if [ "x${invalid_p}" = "x0" ]
1703 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1704 elif [ -n "${invalid_p}" ]
1706 printf " if (${invalid_p})\n"
1707 printf " internal_error (__FILE__, __LINE__,\n"
1708 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1709 elif [ -n "${predefault}" ]
1711 printf " if (gdbarch->${function} == ${predefault})\n"
1712 printf " internal_error (__FILE__, __LINE__,\n"
1713 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1715 printf " if (gdbarch_debug >= 2)\n"
1716 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1717 printf " return gdbarch->${function};\n"
1721 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1722 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1724 printf " gdbarch->${function} = ${function};\n"
1726 elif class_is_info_p
1729 printf "${returntype}\n"
1730 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1732 printf " gdb_assert (gdbarch != NULL);\n"
1733 printf " if (gdbarch_debug >= 2)\n"
1734 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1735 printf " return gdbarch->${function};\n"
1740 # All the trailing guff
1744 /* Keep a registry of per-architecture data-pointers required by GDB
1750 gdbarch_data_init_ftype *init;
1751 gdbarch_data_free_ftype *free;
1754 struct gdbarch_data_registration
1756 struct gdbarch_data *data;
1757 struct gdbarch_data_registration *next;
1760 struct gdbarch_data_registry
1763 struct gdbarch_data_registration *registrations;
1766 struct gdbarch_data_registry gdbarch_data_registry =
1771 struct gdbarch_data *
1772 register_gdbarch_data (gdbarch_data_init_ftype *init,
1773 gdbarch_data_free_ftype *free)
1775 struct gdbarch_data_registration **curr;
1776 for (curr = &gdbarch_data_registry.registrations;
1778 curr = &(*curr)->next);
1779 (*curr) = XMALLOC (struct gdbarch_data_registration);
1780 (*curr)->next = NULL;
1781 (*curr)->data = XMALLOC (struct gdbarch_data);
1782 (*curr)->data->index = gdbarch_data_registry.nr++;
1783 (*curr)->data->init = init;
1784 (*curr)->data->free = free;
1785 return (*curr)->data;
1789 /* Walk through all the registered users initializing each in turn. */
1792 init_gdbarch_data (struct gdbarch *gdbarch)
1794 struct gdbarch_data_registration *rego;
1795 for (rego = gdbarch_data_registry.registrations;
1799 struct gdbarch_data *data = rego->data;
1800 gdb_assert (data->index < gdbarch->nr_data);
1801 if (data->init != NULL)
1803 void *pointer = data->init (gdbarch);
1804 set_gdbarch_data (gdbarch, data, pointer);
1809 /* Create/delete the gdbarch data vector. */
1812 alloc_gdbarch_data (struct gdbarch *gdbarch)
1814 gdb_assert (gdbarch->data == NULL);
1815 gdbarch->nr_data = gdbarch_data_registry.nr;
1816 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1820 free_gdbarch_data (struct gdbarch *gdbarch)
1822 struct gdbarch_data_registration *rego;
1823 gdb_assert (gdbarch->data != NULL);
1824 for (rego = gdbarch_data_registry.registrations;
1828 struct gdbarch_data *data = rego->data;
1829 gdb_assert (data->index < gdbarch->nr_data);
1830 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1832 data->free (gdbarch, gdbarch->data[data->index]);
1833 gdbarch->data[data->index] = NULL;
1836 xfree (gdbarch->data);
1837 gdbarch->data = NULL;
1841 /* Initialize the current value of thee specified per-architecture
1845 set_gdbarch_data (struct gdbarch *gdbarch,
1846 struct gdbarch_data *data,
1849 gdb_assert (data->index < gdbarch->nr_data);
1850 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1851 data->free (gdbarch, gdbarch->data[data->index]);
1852 gdbarch->data[data->index] = pointer;
1855 /* Return the current value of the specified per-architecture
1859 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1861 gdb_assert (data->index < gdbarch->nr_data);
1862 return gdbarch->data[data->index];
1867 /* Keep a registry of swapped data required by GDB modules. */
1872 struct gdbarch_swap_registration *source;
1873 struct gdbarch_swap *next;
1876 struct gdbarch_swap_registration
1879 unsigned long sizeof_data;
1880 gdbarch_swap_ftype *init;
1881 struct gdbarch_swap_registration *next;
1884 struct gdbarch_swap_registry
1887 struct gdbarch_swap_registration *registrations;
1890 struct gdbarch_swap_registry gdbarch_swap_registry =
1896 register_gdbarch_swap (void *data,
1897 unsigned long sizeof_data,
1898 gdbarch_swap_ftype *init)
1900 struct gdbarch_swap_registration **rego;
1901 for (rego = &gdbarch_swap_registry.registrations;
1903 rego = &(*rego)->next);
1904 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1905 (*rego)->next = NULL;
1906 (*rego)->init = init;
1907 (*rego)->data = data;
1908 (*rego)->sizeof_data = sizeof_data;
1912 clear_gdbarch_swap (struct gdbarch *gdbarch)
1914 struct gdbarch_swap *curr;
1915 for (curr = gdbarch->swap;
1919 memset (curr->source->data, 0, curr->source->sizeof_data);
1924 init_gdbarch_swap (struct gdbarch *gdbarch)
1926 struct gdbarch_swap_registration *rego;
1927 struct gdbarch_swap **curr = &gdbarch->swap;
1928 for (rego = gdbarch_swap_registry.registrations;
1932 if (rego->data != NULL)
1934 (*curr) = XMALLOC (struct gdbarch_swap);
1935 (*curr)->source = rego;
1936 (*curr)->swap = xmalloc (rego->sizeof_data);
1937 (*curr)->next = NULL;
1938 curr = &(*curr)->next;
1940 if (rego->init != NULL)
1946 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1948 struct gdbarch_swap *curr;
1949 for (curr = gdbarch->swap;
1952 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1956 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1958 struct gdbarch_swap *curr;
1959 for (curr = gdbarch->swap;
1962 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1966 /* Keep a registry of the architectures known by GDB. */
1968 struct gdbarch_registration
1970 enum bfd_architecture bfd_architecture;
1971 gdbarch_init_ftype *init;
1972 gdbarch_dump_tdep_ftype *dump_tdep;
1973 struct gdbarch_list *arches;
1974 struct gdbarch_registration *next;
1977 static struct gdbarch_registration *gdbarch_registry = NULL;
1980 append_name (const char ***buf, int *nr, const char *name)
1982 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1988 gdbarch_printable_names (void)
1992 /* Accumulate a list of names based on the registed list of
1994 enum bfd_architecture a;
1996 const char **arches = NULL;
1997 struct gdbarch_registration *rego;
1998 for (rego = gdbarch_registry;
2002 const struct bfd_arch_info *ap;
2003 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2005 internal_error (__FILE__, __LINE__,
2006 "gdbarch_architecture_names: multi-arch unknown");
2009 append_name (&arches, &nr_arches, ap->printable_name);
2014 append_name (&arches, &nr_arches, NULL);
2018 /* Just return all the architectures that BFD knows. Assume that
2019 the legacy architecture framework supports them. */
2020 return bfd_arch_list ();
2025 gdbarch_register (enum bfd_architecture bfd_architecture,
2026 gdbarch_init_ftype *init,
2027 gdbarch_dump_tdep_ftype *dump_tdep)
2029 struct gdbarch_registration **curr;
2030 const struct bfd_arch_info *bfd_arch_info;
2031 /* Check that BFD recognizes this architecture */
2032 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2033 if (bfd_arch_info == NULL)
2035 internal_error (__FILE__, __LINE__,
2036 "gdbarch: Attempt to register unknown architecture (%d)",
2039 /* Check that we haven't seen this architecture before */
2040 for (curr = &gdbarch_registry;
2042 curr = &(*curr)->next)
2044 if (bfd_architecture == (*curr)->bfd_architecture)
2045 internal_error (__FILE__, __LINE__,
2046 "gdbarch: Duplicate registraration of architecture (%s)",
2047 bfd_arch_info->printable_name);
2051 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2052 bfd_arch_info->printable_name,
2055 (*curr) = XMALLOC (struct gdbarch_registration);
2056 (*curr)->bfd_architecture = bfd_architecture;
2057 (*curr)->init = init;
2058 (*curr)->dump_tdep = dump_tdep;
2059 (*curr)->arches = NULL;
2060 (*curr)->next = NULL;
2061 /* When non- multi-arch, install whatever target dump routine we've
2062 been provided - hopefully that routine has been written correctly
2063 and works regardless of multi-arch. */
2064 if (!GDB_MULTI_ARCH && dump_tdep != NULL
2065 && startup_gdbarch.dump_tdep == NULL)
2066 startup_gdbarch.dump_tdep = dump_tdep;
2070 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2071 gdbarch_init_ftype *init)
2073 gdbarch_register (bfd_architecture, init, NULL);
2077 /* Look for an architecture using gdbarch_info. Base search on only
2078 BFD_ARCH_INFO and BYTE_ORDER. */
2080 struct gdbarch_list *
2081 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2082 const struct gdbarch_info *info)
2084 for (; arches != NULL; arches = arches->next)
2086 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2088 if (info->byte_order != arches->gdbarch->byte_order)
2096 /* Update the current architecture. Return ZERO if the update request
2100 gdbarch_update_p (struct gdbarch_info info)
2102 struct gdbarch *new_gdbarch;
2103 struct gdbarch *old_gdbarch;
2104 struct gdbarch_registration *rego;
2106 /* Fill in missing parts of the INFO struct using a number of
2107 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2109 /* \`\`(gdb) set architecture ...'' */
2110 if (info.bfd_arch_info == NULL
2111 && !TARGET_ARCHITECTURE_AUTO)
2112 info.bfd_arch_info = TARGET_ARCHITECTURE;
2113 if (info.bfd_arch_info == NULL
2114 && info.abfd != NULL
2115 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2116 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2117 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2118 if (info.bfd_arch_info == NULL)
2119 info.bfd_arch_info = TARGET_ARCHITECTURE;
2121 /* \`\`(gdb) set byte-order ...'' */
2122 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2123 && !TARGET_BYTE_ORDER_AUTO)
2124 info.byte_order = TARGET_BYTE_ORDER;
2125 /* From the INFO struct. */
2126 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2127 && info.abfd != NULL)
2128 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2129 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2130 : BFD_ENDIAN_UNKNOWN);
2131 /* From the current target. */
2132 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2133 info.byte_order = TARGET_BYTE_ORDER;
2135 /* Must have found some sort of architecture. */
2136 gdb_assert (info.bfd_arch_info != NULL);
2140 fprintf_unfiltered (gdb_stdlog,
2141 "gdbarch_update: info.bfd_arch_info %s\n",
2142 (info.bfd_arch_info != NULL
2143 ? info.bfd_arch_info->printable_name
2145 fprintf_unfiltered (gdb_stdlog,
2146 "gdbarch_update: info.byte_order %d (%s)\n",
2148 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2149 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2151 fprintf_unfiltered (gdb_stdlog,
2152 "gdbarch_update: info.abfd 0x%lx\n",
2154 fprintf_unfiltered (gdb_stdlog,
2155 "gdbarch_update: info.tdep_info 0x%lx\n",
2156 (long) info.tdep_info);
2159 /* Find the target that knows about this architecture. */
2160 for (rego = gdbarch_registry;
2163 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2168 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2172 /* Swap the data belonging to the old target out setting the
2173 installed data to zero. This stops the ->init() function trying
2174 to refer to the previous architecture's global data structures. */
2175 swapout_gdbarch_swap (current_gdbarch);
2176 clear_gdbarch_swap (current_gdbarch);
2178 /* Save the previously selected architecture, setting the global to
2179 NULL. This stops ->init() trying to use the previous
2180 architecture's configuration. The previous architecture may not
2181 even be of the same architecture family. The most recent
2182 architecture of the same family is found at the head of the
2183 rego->arches list. */
2184 old_gdbarch = current_gdbarch;
2185 current_gdbarch = NULL;
2187 /* Ask the target for a replacement architecture. */
2188 new_gdbarch = rego->init (info, rego->arches);
2190 /* Did the target like it? No. Reject the change and revert to the
2191 old architecture. */
2192 if (new_gdbarch == NULL)
2195 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2196 swapin_gdbarch_swap (old_gdbarch);
2197 current_gdbarch = old_gdbarch;
2201 /* Did the architecture change? No. Oops, put the old architecture
2203 if (old_gdbarch == new_gdbarch)
2206 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2208 new_gdbarch->bfd_arch_info->printable_name);
2209 swapin_gdbarch_swap (old_gdbarch);
2210 current_gdbarch = old_gdbarch;
2214 /* Is this a pre-existing architecture? Yes. Move it to the front
2215 of the list of architectures (keeping the list sorted Most
2216 Recently Used) and then copy it in. */
2218 struct gdbarch_list **list;
2219 for (list = ®o->arches;
2221 list = &(*list)->next)
2223 if ((*list)->gdbarch == new_gdbarch)
2225 struct gdbarch_list *this;
2227 fprintf_unfiltered (gdb_stdlog,
2228 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2230 new_gdbarch->bfd_arch_info->printable_name);
2233 (*list) = this->next;
2234 /* Insert in the front. */
2235 this->next = rego->arches;
2236 rego->arches = this;
2237 /* Copy the new architecture in. */
2238 current_gdbarch = new_gdbarch;
2239 swapin_gdbarch_swap (new_gdbarch);
2240 architecture_changed_event ();
2246 /* Prepend this new architecture to the architecture list (keep the
2247 list sorted Most Recently Used). */
2249 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2250 this->next = rego->arches;
2251 this->gdbarch = new_gdbarch;
2252 rego->arches = this;
2255 /* Switch to this new architecture. Dump it out. */
2256 current_gdbarch = new_gdbarch;
2259 fprintf_unfiltered (gdb_stdlog,
2260 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2262 new_gdbarch->bfd_arch_info->printable_name);
2265 /* Check that the newly installed architecture is valid. Plug in
2266 any post init values. */
2267 new_gdbarch->dump_tdep = rego->dump_tdep;
2268 verify_gdbarch (new_gdbarch);
2270 /* Initialize the per-architecture memory (swap) areas.
2271 CURRENT_GDBARCH must be update before these modules are
2273 init_gdbarch_swap (new_gdbarch);
2275 /* Initialize the per-architecture data-pointer of all parties that
2276 registered an interest in this architecture. CURRENT_GDBARCH
2277 must be updated before these modules are called. */
2278 init_gdbarch_data (new_gdbarch);
2279 architecture_changed_event ();
2282 gdbarch_dump (current_gdbarch, gdb_stdlog);
2290 /* Pointer to the target-dependent disassembly function. */
2291 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2292 disassemble_info tm_print_insn_info;
2295 extern void _initialize_gdbarch (void);
2298 _initialize_gdbarch (void)
2300 struct cmd_list_element *c;
2302 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2303 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2304 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2305 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2306 tm_print_insn_info.print_address_func = dis_asm_print_address;
2308 add_show_from_set (add_set_cmd ("arch",
2311 (char *)&gdbarch_debug,
2312 "Set architecture debugging.\\n\\
2313 When non-zero, architecture debugging is enabled.", &setdebuglist),
2315 c = add_set_cmd ("archdebug",
2318 (char *)&gdbarch_debug,
2319 "Set architecture debugging.\\n\\
2320 When non-zero, architecture debugging is enabled.", &setlist);
2322 deprecate_cmd (c, "set debug arch");
2323 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2329 #../move-if-change new-gdbarch.c gdbarch.c
2330 compare_new gdbarch.c